baber/WOPTO huggingface dataset:
Patent JP-S6217712-A (JP)
Title: Coupling method for optical device and optical waveguide
Inventor: KITACHI NISHIMINE
IPC: G02B6/42
Filed: 1985-07-16
Abstract: PURPOSE:To execute efficiently coupling by installing a lens in a groove which has been formed by a photolithography means so that a relative position between an optical waveguide and the lens becomes optimum, in the end part of this optical waveguide, and adjusting a relative position of an optical device to this optical waveguide. CONSTITUTION:A columnar lens 3 for coupling to a chip 2 of a semiconductor laser 1 is installed to a wide width part of a groove 7 which has been formed on an optical waveguide substrate 6 by a photolithography means, and determined clearly so that a relative position to an optical waveguide 5 becomes optimum by a narrow width part of the groove 7. An interval l between the lens 3 and the optical waveguide 5 is so as to give the maximum coupling efficiency determine by an emitting angle of the semiconductor laser 1, N.A. of the lens 3, and N.A. of the optical waveguide 5. The optical waveguide 5 is a distribution refractive index type which has been formed by an ion exchange. In this way, a relative position of the lens 3 and the optical waveguide 5 is determined in advance, therefore, as for the optical waveguide 5 and the semiconductor laser 1, coupling of a high efficiency is obtained by adjusting the relative position to the optical waveguide 5 on which this lens 2 has been placed.
Patent JP-H11354632-A (JP)
Title: Semiconductor device and its manufacture
Inventor: MIZOGUCHI SHUJI
IPC: H01L21/768
Filed: 1998-06-05
Abstract: PROBLEM TO BE SOLVED: To prevent the increase of contact resistance and provide stable contact resistance, even if an upper layer wiring shifts to a through hole between wirings formed in a semiconductor device. SOLUTION: A through-hole, whose upper part of an opening part is tapered, is formed in a layer insulation film 12 on a lower layer wiring 11. A barrier metal layer and a W film are embedded inside the through-hole. After an upper layer wiring 17 is formed and connected to the lower layer wiring 11, a W film exposed from inside the through-hole is selectively etched until a taper surface 19 of a through hole is exposed, including a barrier metal layer of a foundation using at least the upper layer wiring 17 as a mask. A contact region between the upper layer wiring 17 and a W film inside the through-hole can be made large, and upper layer wiring 17b and an upper layer wiring 17c adjacent each other near a polar will not shortcircuit.
Patent JP-S5677554-A (JP)
Title: Ignition device for internal combustion engine
Inventor: SHIMIZU YUZURU
IPC: F02P15/00
Filed: 1979-11-30
Abstract: PURPOSE:To ensure an operation of an engine even when an ignition timing determining circuit of a noncontact ignition device for the engine is in failure by providing a circuit to void the inoperative circuit during the failure. CONSTITUTION:The noncontact ignition device includes a thyristor 7 working as an operating element interposed within a discharging circuit for a capacitor 4 for controlling the power supply to an ignition coil 5. It further includes a crank angle detector 8 which provides the first angle signal (a) representing a given crank angular position and the second angle signal (b) representing the crank angular position retarded by a predetermined angle after the position at which the signal (a) is generated and also the ignition timing determining circuit 15 which starts its calculation in response to the first angle signal (a). The circuit 15 comprises a waveform shaping circuit 19, calculating circuit 21, F-V circuit 22, and pulse rise-up detecting circuit 23. When the F-V circuit 22 falls in failure, and one of switches 25-29 is released so that the engine can be kept in operation.
Patent JP-H05345692-A (JP)
Title: Method for growing single crystal and device therefor
Inventor: TAKATANI HIDEAKI
IPC: H01L21/208
Filed: 1992-06-16
Abstract: PURPOSE:To readily obtain single crystal having a uniform composition of a stoichiometric composition by using two crucibles connected so as to move melt, pulling up and growing single crystal by a specific growth method. CONSTITUTION:Two crucibles 21 and 22 are connected through a capillary so as to move melt. A raw material having a composition to be made into a melt 31 for crystallizing solid phase of a stoichiometric composition is fed to the crucible 21, heated by a heater 24 and melted. Simultaneously, a raw material having a given stoichiometric composition or a composition close to the composition is added to the other crucible 22, heated by a heater 25 and melted to form a melt 32. Seed crystal 33 is brought into contact with the surface of the melt 31 while maintaining the melt 31 at the crystallization temperature of the stoichiometric composition to grow single crystal 35 (cooling; single crystal of lithium niobate) of the stoichiometric composition.
Patent JP-H056803-A (JP)
Title: Ptc resistance element
Inventor: NISHINO MICHIO
IPC: H01C7/02
Filed: 1991-06-27
Abstract: PURPOSE:To provide a PTC resistance element which has no crack nor deformation in a ceramic part, an electrode part or a brazing material part. CONSTITUTION:An alloy (29-17 alloy) which has the same coefficient of linear expansion as V2O3 ceramic 1 is used as an electrode 3. The electrode 3 and the V2O3 ceramic 1 are joined together with brazing material 2 (59%Ag-27.25 Cu-12.5%In-1.25Ti) in vacuum (10<-5> Torr or below) at 700-1000 deg.C for 20 minutes.
Patent JP-H027275-A (JP)
Title: Digital signal recording and reproducing device
Inventor: HATANAKA YUJI
IPC: G11B27/32
Filed: 1988-06-27
Abstract: PURPOSE:To prevent data from missing due to editing by providing a pseudo data generation circuit to record pseudo data on a recording medium, and a pseudo data detection circuit to detect the pseudo data at an editing point in reproduction. CONSTITUTION:The pseudo data generation circuit 28 to record the pseudo data on the recording medium by attaching the pseudo data behind recording data at the time of completing recording and attaching the pseudo data before the recording data at the time of starting the recording, and the pseudo data detection circuit 22 to detect the pseudo data at the editing point in the reproduction are provided. The recording is performed so that recording parts before and behind the editing point can be changed to the pseudo data and all the data at the parts missed by the editing can be changed to the dummy data by the pseudo data generation circuit 28. Therefore, it is possible to prevent the data to be recorded and reproduced originally from being missed, and furthermore, to prevent the pseudo data from being assumed as normal data by the pseudo data detection circuit 22. In such a way, it is possible to prevent the data from missing due to the editing at the time of editing and recording the data.
Patent JP-H0324653-A (JP)
Title: Cache memory control system
Inventor: TANIGUCHI TOSHIHISA
IPC: G06F12/08
Filed: 1989-06-21
Abstract: PURPOSE:To reduce memory overhead due to the fetching of an instruction by differentiating the block size of an instruction cache from that of an operand cache. CONSTITUTION:The block size of the instruction cache memory IBS 7 is expanded n times (n>=2) that of the operand cache memory OBS 9 and block transfer from a main storage (MS) 10 to the IBS 7 and the OBS 9 is controlled so that data of different block size are respectively transferred. If an idle space exists in an instruction buffer register (IBR) 3 when block transfer generates in instruction fetching, the block transfer is controlled so that the data of addresses following the address of target data are set up in the IBR 3 by a series of sequence in addition to the transfer of the target data.
Patent JP-H11354739-A (JP)
Title: Semiconductor integrated circuit device and its manufacture
Inventor: SATO WATARU
IPC: H01L27/108
Filed: 1998-06-05
Abstract: PROBLEM TO BE SOLVED: To provide a DRAM hybrid LSI capable of improving mass productivity by using constant processing conditions without depending upon the scale of a DRAM. SOLUTION: Trench capacitors 20 are arrayed and formed onto a silicon substrate under the state, in which upper sections are covered with insulating films. MOS transistors 40 constituting memory cells together with the trench capacitors 20 are formed by utilizing a part of a region, in which the trench capacitors 20 are arrayed and formed. Gates for the MOS transistors 40 are formed in continuously disposed word lines WL, and bit lines BL connected to sources for the MOS transistors 40 are crossed with the word lines and arranged. A MOS transistor 50 configuring a peripheral circuit is formed in a region in which the trench capacitors 20 are buried, on the outside of a DRAM cell array under the state in which the MOS transistor 50 is insulated from the trench capacitors 20.
Patent JP-H08326578-A (JP)
Title: Combustion control device for diesel engine
Inventor: FUNAHASHI HIROSHI
IPC: F02D43/00
Filed: 1995-05-31
Abstract: PURPOSE: To prevent the occurrence of unevenness in combustion classified by the cylinder of a diesel engine. CONSTITUTION: An oxygen concentration detecting sensor 23 is located in a spot situated downstream from the exhaust gas collection part of an exhaust manifold. The actual measurements of oxygen concentration detected by the sensor 23 is compared with an oxygen amount read from a preset map. Based on the comparison, an electronic governor 34 is controlled by a computer 33 to control an injection amount of fuel and by controlling an EGR valve actuator 26, an EGR amount is controlled.
Patent JP-S5582937-A (JP)
Title: Airtightness inspecting method of double pipe and its device
Inventor: NAGANO SHIGEFUMI
IPC: G01M3/28
Filed: 1978-12-18
Abstract: PURPOSE: To inspect airtightness without damaging an internal pipe, by a mechanism wherein a double pipe is surrounded by means of a hollow body in an elastic material, an external pipe is pressed by enclosing a pressure fluid with fixed pressure into the hollow body and the change of pressure in the hollow body after a fixed time is measured.  
     CONSTITUTION: A double pipe 2 is inserted into a hollow body 1 in an elastic material through holding holes 6, 6, and one end of the dobule pipe 2 is contacted with a L fitting 14 of a fitting 12 for positioning. When pressed air is enclosed into the hollow body 1 from an air compressor 10, an inner cylinder 4 expands to oppress an external pipe 2b of the double pipe 2. When a pressure gauge 11 is observed and pressure reaches a fixed pressure, a valve 9 is closed, and the change of pressure is measured after a fixed time elapses. If the airtightness of a hollow portion 2d is imperfact at that time, the volume of the hollow portion 2d is pressed by means of the inner cylinder 4 of the hollow body 1 and decreases, pressure in the hollow body 1 diminishes and a pointer of the pressure gauge 11 falls. Thus, airtightness can easily be inspected without damaging an internal pipe 2a and regardless of the quality of materials, etc. of the external pipe 2b. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5381133-A (JP)
Title: Preparation of heat pipe roller
Inventor: NAMIKI RIYOUICHI
IPC: G03G15/20
Filed: 1976-12-25
Abstract: PURPOSE: To manufacture a heat pipe roller of high degree of vacuum in a simple manner by connecting the heat pipe roller to both thermal medium liquid tank and gas bomb in order to exhaust air and enclose an inert gas with the operation of a valve. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S5381833-A (JP)
Title: Ignition system for internal combustion engine
Inventor: HATSUTORI TADASHI
IPC: F02P5/145
Filed: 1976-12-26
Abstract: PURPOSE:By the control of the ignition timing to make Pmax/Pi be settled in a designated band area comparing the maximum pressure value Pmax of the pressure in the cylinder with the pressure value Pi at a fixed angle obtained before the mixed gas explosion, it is designed to bring the ignition timing set near to the MBT.
Patent JP-H0719340-A (JP)
Title: Vacuum chamber
Inventor: NAKAYA MAKOTO
IPC: H01L21/265
Filed: 1993-06-28
Abstract: PURPOSE:To reduce contamination of the surface to be treated of a semiconductor substrate in a vacuum chamber in an ion-implantation device, etc., by providing a block chamber connecting the inside and the outside of the vacuum chamber, and opening and closing the block chamber and the inside of the vacuum chamber by a platen for holding the semiconductor substrate. CONSTITUTION:In the bottom wall surface of a chamber body 1 to be evacuated by a vacuum pump, an air lock chamber 3 connecting the inside and the outside of the chamber body 1 and serving as the entrance of a wafer 2 as a semiconductor substrate, is provided. The air lock chamber 3 is opened and closed by an air lock door 4 from the outside, and is opened and closed from the inside by a platen 5 supported on a driving device 6 including an arm 8 attached to a rotary shaft 7 so that the inside of the body 1 cannot be open to the atmospheric side. Further, three wafer guides 4a, on which the wafer 2 is to be placed and held, are provided on the air lock door 4, and the wafer 2 on the door 4 is fixed and held on the platen 5 by an electrostatic chuck so that ion- implantation can be carried out in this state.
Patent JP-S5780816-A (JP)
Title: Voltage control variable gain circuit
Inventor: KATAKURA MASAYUKI
IPC: H03G3/12
Filed: 1980-11-08
Abstract: PURPOSE:To reduce the lowering of stability and te lowering of a high band due to the land of a feedback circuit, by limiting the gain variation in an extrahigh band at the outside of the audible band. CONSTITUTION:An input terminal 41 is conncted to an inversion input terminal of an operational amplifier 43 through a resistance 45. The noninversion input terminal of the opertional amplifier 43 is grounded, and the output terminal is connected to a current dividing circuit 44 through a resistance 54. One of two outputs divided by the current dividing circuit 44 is sent to an output teminal 42, and the other is fed back to the inversion input terminal of the operational amplifier 43. The current dividing circuit 44 divides an output current (ia) of the operational amplifier 43 to the feedback line and the output line in proportion (gi):(go). Values of (go) and (gi) are changed in accordance with a control voltage to obtain a voltage control variable gain circuit where the gain is  changed. Further, a band limitng circuit 51 where a resistance 52 and a capacitor 53 are connected in series is connected between the output terminal and the noninversion input terminal of the operational amplifier 43.
Patent JP-S6048386-A (JP)
Title: Journal mechanism
Inventor: ENARI SHIGEAKI
IPC: B41J11/48
Filed: 1983-08-29
Abstract: PURPOSE:To provide a journal mechanism capable of automatically loading journal paper, constituted by mounting a guide plate for guiding the journal paper from a supply part to a wind-up part, a wind-up spool connected to the vacuum mechanism of the wind-up part and a paper sensor. CONSTITUTION:When journal paper 3 is charged to a supply part 10, a sensor 7 is turned ON, and a feed roller 11 and a spool 6 are driven to rotate the journal paper 3. The paper 3 is passes between a platen 2 and a head 1 while guided by a guide plate 4 after the end side thereof is peeled off by a peel-off plate 5 and detected by a sensor 8 when passes while being guided by the guide plate provided in the downstream side of said platen 2 and the head 1. When this detection is performed after predetermined time has passed since the paper is detected by the sensor 7, feed operation is succeeded, vacuum pump is started and the wind-up spool 6 is rotated while performs sucking to wind up the journal paper 3 supplied thereto.
Patent JP-S5780817-A (JP)
Title: Production for quartz oscillator
Inventor: WAKASUGI MAKOTO
IPC: H03H3/02
Filed: 1980-11-08
Abstract: PURPOSE:To reduce the cost and to eliminate cracks on side faces of a tuning fork to improve the performance, by improving the precision of the form after the chemical wet etching treatment. CONSTITUTION:A quartz plate 1 is polished >=7-8mu thicker just after the polishing work in case of 40mm.X40mm.. Next, the thickness of the quartz plate 1 is reduced from both the front and rear sides by dry etching, and the thickness is made uniform with an error of approximately + or -0.1mu for (a)mu of the thickness of a completed quartz oscillator. A CrAu 2 is vapor-deposited or sputtered to the quartz plate 1 where the thickness is uniform by th dry etching work, and a photoresistor 3 is coated on the CrAu 2 by a spinner or the like, and the quartz plate 1 is patterned into a tuning fork and is etched into tuning fork form, thus obtaining a tuning fork quartz bar.
Patent JP-S6048680-A (JP)
Title: Picture converting circuit
Inventor: KOJIMA KAZUMI
IPC: H04N5/262
Filed: 1983-08-29
Abstract: PURPOSE:To decrease the number of frame storage circuits into one circuit by providing two buffer circuits to a screen converting circuit editing and converting a TV screen and allowing a CPU to control the content. CONSTITUTION:An oscillating circuit 4 is oscillated in synchronizing with a horizontal synchronizing signal inputted from a termianl 1 and the signal is given to the 1st counter 5. Further, the horizontal synchronizing signal and a vertical synchronizing signal are given to the 2nd counter 6. Moreover, the output side of the counter 5 is provided with the buffer circuit 7 and the output side of the counter 6 is provided with the buffer circuit 8 respectively. The circuits 7 and 8 are constituted so that the content is changed and rewritten by a control signal from a CPU9 and the output of the circuits 7 and 8 is given to a frame storage circuit 11 as an address input.
Patent JP-H06261604-A (JP)
Title: Traveling passage for agricultural working car in field
Inventor: SAWAMURA HISASHI
IPC: A01B69/00
Filed: 1992-05-25
Abstract: PURPOSE:To provide a traveling passage for an agricultural working car in the field, designed so as to secure an accurate running state and a uniform working accuracy of an agricultural working car in the paddy field and to have functions as a groove for a field irrigation water canal and a field drainage canal in combination. CONSTITUTION:Plural pairs of traveling passages each designed so that the cross section of the part coming into contact with the left or right wheel of an agricultural working car sunk into the cultivated soil may have a groove shape are made in rows almost parallel to levees leaving a prescribed space in the field so that the surface may be lower than that of the cultivated soil. A water supply opening and a drainage opening are communicated to both the end parts of these traveling passages respectively so that they may have functions as a groove for a field irrigation water canal and a field drainage canal in combination.
Patent JP-H0826893-A (JP)
Title: Formation of oxide superconducting thin film with c-axis in-plane orientation and a-axis orientation and base body therefor
Inventor: KOBAYASHI JUNYA
IPC: C30B29/22
Filed: 1994-07-08
Abstract: PURPOSE:To obtain an oxide superconducting thin film excellent in crystallinity and surface smoothness by forming a specific buffer layer on an oxide single crystal base body followed by forming thereon an oxide superconducting thin film. CONSTITUTION:This superconducting thin film is obtained by forming a buffer layer consisting of an oxide single crystal thin film with rectangular surface lattice on an oxide single crystal base body followed by forming thereon an oxide superconducting thin film. By this method, the objective oxide superconducting thin film with c-axis in-plane orientation and a-axis orientation excellent in crystallinity and surface smoothness can be formed. Therefore, SIS tunnel junction is also made possible. Use of a multiple oxide having GdFeO3 structure as the buffer layer makes the objective oxide superconducting thin film with more excellent crystallinity and surface smoothness able to be formed because the GdFeO3 structure resembles the crystal structure of the aimed thin film.
Patent JP-H10331869-A (JP)
Title: Lubricating device for clutch
Inventor: TAKETSUNA YASUHARU
IPC: F16D13/74
Filed: 1997-05-30
Abstract: PROBLEM TO BE SOLVED: To suppress generation of dragging torque as much as possible in a clutch releasing condition by opening/closing a lubrication oil passage according to a shift of a clutch operating mechanism. SOLUTION: When an oil pressure in a hydraulic chamber 30 is increased, a piston 29 is moved on the right side and a diaphragm spring 24 is elastically deformed, and a wet type friction clutch is released. When the spring 24 is elastically deformed, a contact area between a side face 19A and a projection part 26 is reduced, and each port 34 is opened. Then, forcibly fed lubrication oil is supplied to a storage chamber D1 via oil passages 35, 33. As a result, a contact part between a clutch disk 18, a pressure receiving plate 21, and a pressure plate 22 is cooled down or lubricated. However, if the piston 29 is stopped in a waiting position so as to release the clutch, the each port 34 is closed by means of the each projection part 26, so that no lubrication oil is supplied to the storage chamber D1.  Therefore, shearing force of the lubrication oil existing in the frictional contact part is lowered, so that dragging torque can be suppressed.
Patent JP-S5680989-A (JP)
Title: Power supply circuit
Inventor: FURUKAWA KENZOU
IPC: H04Q1/28
Filed: 1979-12-05
Abstract: PURPOSE:To turn off a power source in case of an abnormal fault by connecting a remotely controllable circuit breaker in parallel to the other breaker that causes a fuse break on detecting excessive current. CONSTITUTION:Master fuse MF has two interlocking nonfuse breakers and is so structured that once one breaker is broken, the other will also be broken. When key KY for a function of turning off the power source is operated in case of an abnormal fault, current from the center office flows from B0 to L0 and a break is caused between B1 and L1, so that the power supply will be stopped. If excessive current flows, the B1-L1 break is made to stop the power supply.
Patent JP-H09314856-A (JP)
Title: Printer
Inventor: WATABE YUUJI
IPC: B41J2/175
Filed: 1996-05-29
Abstract: PROBLEM TO BE SOLVED: To prevent ink from being deteriorated owing to the unnecessary application of electric current to the ink during any other time by switching the electric current on only during the process to determine whether the ink is present. SOLUTION: A pair of electrodes 19A, 19B keep an electrical contact with ink 9 stored in an ink tank 3. When a switch 11 is turned on by a carriage, an electric current passes to the ink 9 from a power supply 25 through the electrodes 19A, 19B and the impedance is measured. Consequently, the presence of the ink 9 is detected by an interpreting part 20. The application of the electric current to the ink 9 only when the presence of the ink is determined serves not only to prevent the wasteful consumption of the electric current but also to prevent the deterioration of the ink 9.
Patent JP-H10330102-A (JP)
Title: Purification of aqueous hydrogen peroxide solution
Inventor: SASAKI TAKESHI
IPC: B01D61/02
Filed: 1997-05-29
Abstract: PROBLEM TO BE SOLVED: To provide an aqueous hydrogen peroxide solution with the total organic carbons reduced to <=10 ppm at a low cost. SOLUTION: This method for obtaining an aqueous hydrogen peroxide solution reduced in a total organic carbon comprises filtering an aqueous solution containing 5-40 wt.% of hydrogen peroxide and 10-500 ppm of the total organic carbon atoms with a reverse osmotic membrane. Therein, the reverse osmotic membrane comprises an ultralow pressure, highly stopping rate composite membrane having a salt-stopping rate of >=99.0% and a permeation flux of >=20 liter/m<2> .hr, when an aqueous 500 ppm sodium chloride solution as an evaluation solution is filtered under a pressure of 5 kgf/cm<2> .